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All Journal International Journal of Applied Power Engineering (IJAPE) International Journal of Science and Engineering (IJSE) TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL METANA Jurnal Kreatif Tadulako Online Jurnal Kesehatan Masyarakat Indonesian Journal of Conservation Waste Technology Primary: Jurnal Pendidikan Guru Sekolah Dasar Al Fikra : Jurnal Ilmiah Keislaman Jurnal An-Nur Jurnal Teknik Mesin Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Tarbawi: Jurnal Keilmuan Manajemen Pendidikan Jurnal Teknologi Pendidikan PROSIDING SEMINAR NASIONAL PROGRAM PASCASARJANA JURNAL PENDIDIKAN TAMBUSAI MUHARRIK: JURNAL DAKWAH DAN SOSIAL Warta Penelitian Perhubungan Science Midwifery Economics and Digital Business Review Al-Liqo: Jurnal Pendidikan Islam Telcomatics Bioinformatics and Biomedical Research Journal J-ESA (Jurnal Ekonomi Syariah) ANTHOR: Education and Learning Journal KOLONI Paradoks : Jurnal Ilmu Ekonomi Jurnal Profesi Insinyur Indonesia Tabayyun JER Jurnal ELTEK Jurnal Sistem Informasi, Akuntansi dan Manajemen Reflection: Islamic Education Journal ANTHOR: Education and Learning Journal Warta Penelitian Perhubungan

Syafrudin Syafrudin

Environmental Engineering Department, Faculty Of Engineering, Diponegoro University Semarang

Author-ID : 398670

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 73 Documents Claim Missing Document

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Uji Kriteria Manajemen dalam Pengelolaan Air Limbah Domestik Terpusat Siswati, Muji; Syafrudin, Syafrudin; Sriyana, Sriyana
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 23, Nomor 1, JULI 2017
Publisher : Department of Civil Engineering, Diponegoro University

Sanitation infrastructure is one of the basic needs of society and has a strategic role in improving the health and welfare of the community. The Indonesian government has built centralized domestic waste water infrastructure in 13 cities until 2014. According to USAID (2006) and AusAID (2013), idle capacity and cost recovery in the centralized domestic waste water system is still a major problem. Therefore, it needs to be done assessment management criteria of centralized domestic waste water management. This research is done by three-stage, that is construction models of a relationship of interdependence between management criteria; assessment of model suitability that has been constructed using SEM method; and calculate the weight of each management criteria using ANP method. The management criteria used on this study consist of: performance management, technical, institutional, regulatory, financing, and public participation. The weight of each criteria using models that have been assessment for their suitability, are: performance management (75.37%), financing (8.83%), public participation (8.39%), technical (3.56%), regulatory (2.36%) and institutional (1:49%). The global weight of sub criteria with most critical weight and should be a priority concern are sustainability (48.20%), public acceptance (14.90% 0, reliability (9.30%), willingness to pay (5.20%), and cost recovery (4.62%).

PENYISIHAN KONSENTRASI TIMBAL (Pb) MENGGUNAKAN ADSORBENT ABU ENDAPAN BATU BARA (STUDI KASUS : AIR LIMBAH INDUSTRI PERCETAKAN SEMARANG) Hardyanti, Nurandani; Syafrudin, Syafrudin
METANA Vol 4, No 1 (2007): Juni 2007
Publisher : Universitas Diponegoro

Abstract Offset industries produced waste water contained lead contaminant and had pollution potential for environment. One of method to remove waste water contained lead was used bottom ash as adsorbent. This research was to know the ability of Â bottom ash to reduce lead in artificial waste water with concentration of lead was 20.64 mg/l in the batch and continuous processes. For the batch processes, bottom ash was used as independent variable of 0, 1, 3, 5, and 7 weight gram and highest removal efficiency up to 72.09-90.84%. While in continuous process experimental used column with diameter of 2 inch, discharge of 760 ml/minute, and influent concentration of 15 mg/l, 20mg/1, and 25 mg/l. Highest efficiency of removing lead was 73%-92.93%. With velocity constanst was 0.416-0.490 ml/mg. Second while operational capacity was 0.069-0.081 mg/g. Keywords:offset, adsorption, waste water, lead, coal bottom ash

Analisis Kinerja Jalan Satu Arah di Kecamatan Semarang Tengah, Kota Semarang Dewi, Astri Purnama; Syafrudin, Syafrudin; Riyanto, Bambang
Warta Penelitian Perhubungan Vol. 31 No. 2 (2019): Warta Penelitian Perhubungan
Publisher : Sekretariat Badan Penelitian dan Pengembangan Perhubungan

Kota Semarang mengalami peningkatan pergerakan lalu lintas setiap tahunnya, khususnya Kecamatan Semarang Tengah, yang memiliki fungsi sebagai kawasan pusat perbelanjaan, perdagangan dan jasa, perkantoran, dan pendidikan. Pemerintah Kota Semarang telah berupaya mengatasi permasalahan lalu lintas dengan menerapkan sistem satu arah pada ruas Jalan Gajahmada, Jalan Pandanaran, Jalan MH. Thamrin, Jalan Pemuda, Jalan Imam Bonjol Selatan, Jalan Kapten Piere Tendean, dan Jalan Indraprasta. Penelitian ini dilakukan untuk mengetahui gambaran efektivitas atas penerapan sistem satu arah pada ruas jalan tersebut dengan menggunakan metode analisis deskriptif dan kuantitatif hasil keluaran EMME2 versi 9.5. Hasil dari penelitian ini yakni setelah diterapkannya sistem satu arah masih terdapat ruas jalan yang mengalami penurunan kinerja jalan, yaitu ruas jalan Imam Bonjol Selatan belum sesuai dengan persyaratan fungsi jalan karena lebar badan jalannya hanya 10 meter sedangkan dalam persyaratan untuk fungsi jalan arteri sekunder lebar badan paling sedikit 11 meter, ruas Jalan Kapten Piere Tendean dan Pandanaran nilai DS lebih besar 0.75 pada waktu sore hari dan berada pada tingkat pelayanan D pada ruas Jalan Pandanaran sedangkan tingkat pelayanan E berada pada ruas Jalan Kapten Piere Tendean. Selain itu, pada ruas Jalan Imam Bonjol Selatan, Kapten Piere Tendean, dan Pandanaran masih belum sesuai dengan indikator kinerja sistem jaringan jalan untuk meminimalisasi atau mengurangi ketertundaan total dan panjang perjalanan total karena kecepatan perjalanan menurun dan kapasitas jalan belum mampu menampung beban lalu lintas. Solusi penanganan yang dilakukan adalah nilai DS harus lebih kecil 0.75 dan maksimal menunjukkan ditingkat pelayanan C, Jalan Kapten Piere Tendean, dan Jalan Pandanaran, pelebaran jalan 1 meter pada ruas Jalan Imam Bonjol Selatan dan pengaturan off street parking pada ruas Jalan Imam Bonjol Selatan, Kapten Piere Tendean, dan Pandanaran. Kata kunci: EMME2 versi 9.5, kinerja sistem jaringan jalan, permasalahan lalu lintas, sistem satu arah. Performance Analysis of One - Way Roads in Central Semarang District, Semarang : The city of Semarang is experiencing an increase in the movement of traffic every year, especially in Central Semarang District which has a function as a shopping center, trade and service area, office area, and education area. The Semarang City Government has tried to overcome traffic problems by implementing a one - way system on Gajahmada, Pandanaran, MH. Thamrin, Pemuda, Imam Bonjol Selata n, Piere Tendean, and Indraprasta streets . This study was conducted to determine the effectiveness of the implementation of the one - way system on the road using the analysis method, which wa s descriptive and quantitative output of EMME2 version 9.5. The re sults showed that after the implementation of one - way system, there was still decreased performance in some roads. The road segment in Imam Bonjol Selatan street had not fulfill the requirements for road functions because the width of the road wa s only 10 meters, mean while according to the requirements for secondary arterial road functions it should be at least 11 meters. The DS value of Piere Tendean and Pandanaran Roads was lebih besar 0.75 in the afternoon . Furthermore, the level service of Pandanaran Road was D w hile Captain Piere Tendean Road section was E . In addition, Imam Bonjol Selatan, Captain Piere Tendean and Pandanaran Roads we re not in accordance with the performance indicators for the road network ing system to minimize or reduce total delays and total t rip length because travel speeds were declining and road capacity had not been able to accommodate traffic loads. T o overcome this problem the DS value must be lebih besar 0.75 and the maximum service level should be C in Piere Tendean and Pandanaran Road s , widening 1 meter road on Imam Bonjol Selatan section, and setting off street parking on Imam Bonjol Selatan Road, Captain Piere Tendean, and Pandanaran. Keywords : EMME2 version 9.5, road network system performance, traffic problems, one - way system

ANALISA PERBEDAAN LPS (LAST PLANNER SYSTEM) DENGAN SISTEM KONVENSIONAL SERTA PENGARUH CPM DAN BAR CHART PADA LPS A, Sadhu Adwitya; Wibowo, M. Agung; Syafrudin, Syafrudin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 25, No 1 (2020): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v25i1.1919

Two generally method / tools which used in project construction management system in Indonesia and the name are CPM (critical part method) or network planning and Bar Chart. The system used general method called conventional management system. Nowadays, was appeared one of a new system which seldom to applied in Indonesia, it is called LPS (last planner system). This research, researcher doing analyzed the differences between LPS and conventional management system. The result which obtained in this research are LPS dominated to accentuates team collaborative in the scheduling planning, resource allocation, control and enhance of work productivity, issue solved, regularly scheduling planning. Conventional management system more rely on the way CPM and Bar Chart working in that system with project manager decision. Planning of the schedule in this system doing by scheduling team. rescheduling in this system is not routine, itâ€™s depend by construction progress. CPM and Bar Chart methods is influence on LPS. The both of methods was appeared in master scheduling, look a head scheduling, weekly work planning, shielding production, workable back log, percent plan completed and reliable promise process

UPAYA MENINGKATKAN HASIL BELAJAR SISWA MELALUI PENGGUNAAN MEDIA DAN METODE PEMBERIAN TUGAS DI KELAS IVB SDN 007 BAGAN BESAR DUMAI Syafrudin, Syafrudin
Primary: Jurnal Pendidikan Guru Sekolah Dasar Vol 4, No 2 (2015)
Publisher : Laboratorium Program Studi Pendidikan Guru Sekolah Dasar

This study aimed to describe the learning outcomes through the use of maps. The subjects were students of class V SD 007 Bagan Besar, Dumai with held consisting of two cycles. Improved learning outcomes in terms of four categories, namely absorption, the effectiveness of learning, mastery learning completeness students both individually and classical completeness and thoroughness of learning outcomes. The instrument used for data collection is an oral test and a written test in the form of worksheets that is done after the process of learning. The results showed absorption learning outcomes on average 80% considered very good, very effective learning effectiveness categorized by an average of 8.5. While the completeness of student learning outcomes expressed complete 100%.Keywords: maps, learning outcomes

Compost Solid-phase Microbial Fuel Cell (CSMFC) Performance using Graphene and Graphite as Electrodes Putri, Soraya Annisa; Confera, Akbar Nugroho; Syafrudin, Syafrudin; Ramadan, Bimastyaji Surya
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 3 (2020): November 2020
Publisher : Universitas Diponegoro

Organic waste is a type of waste produced by many sector, which need to managed appropriately. During its development, composting is one of the organic waste management efforts that is often be applied, Another alternative organic waste management in the form of Microbial Fuel Cell (MFC) has emerged. Several researchers conducted studies on MFC performance which was influenced by many factors, especially the electrode which contributes to the electron transfer process. This study has a concern about energy optimization through CSMFC technology using different electrodeâ€™s material. Electrode materials from Graphene and Graphit has good electro-conductivity and has a large surface area, making it suitable for bacteria to adhere. The sampled reactors are consists of two types of electrodesÂ in the form of graphite and graphene. Each materials has anode and cathode ratio of 1:1, 2:1, and 3:1. The samples measured into three kinds, which called a mature compost measurement, electrochemical measurement, and biochemical measurement. Some collected sampling data were then processed and analyzed statistically using SPSS software. The processed and analyzed data included the calculation of power density, total N, C/N ratio, and moisture content. Any data like voltage (V) and electric current (I) are needed to obtain a power density. The highest average voltage, current, power and power density are produced by the N3 reactor (graphene 3:1) that is 269 x 10-3 V, 163 x 10-6 A, 56 x 10-6 Watt and 1.914 x 10-3 W / m2. There is no significant effect of variations in the type of electrode (graphite and graphene) on CSMFC performances.

Analisis Pengaruh Penambahan Campuran Enzim Amilase dan Selulase Terhadap Produksi Biogas Dari Limbah Sekam Padi Dengan Metode Solid State Anaerobic Digestion (SS-AD) Larasati, Dyanung; Hardyanti, Nurandani; Sumiyati, Sri; Nugraha, Winardi Dwi; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 3 (2020): November 2020
Publisher : Universitas Diponegoro

This research intend to analyze effect of concentrated amylase enzyme and cellulose enzyme, production rate and quality of biogas produced from rice husk waste. The rice husk was given chemical pretreatment by soaking it into NaOH 6 % for 24 hours. Then washed using water so that the pH became normal then dried under the sun before put it inside the reactor with the other enzyme, rumen and urea. The reactor that used has volume of 200ml and has total of 18 reactor with each variable has 2 reactor. Variance of concentrated enzyme that used are 9%, 12%, 15% and 18%. Biogas measurement done every 2 days for 60 days. Result from this research show that addition mixture of amylase enzyme and cellulose enzyme increase yield of biogas that produced. Because yield that produce from reactor with addition of 9%, 12%, 15%, 18% enzyme consecutively are 604 ml, 935 ml, 1041,5 ml and 2922,5 ml. whereas the reactor that not given enzyme only has biogas yield of 115 ml. the highest production rate occur on reactor that were given 18% of enzyme mixture with the production constant rate of 5,39 ml/(grTS day), maximum biogas production amount of 68,53 ml/grTS and the minimum time for biogas to formed is 0,92 days

Factors Influencing Teacher Motivation to Become School Principal in Serang City Syafrudin, Syafrudin; Hufad, Achmad; Fathurrohman, Maman
Tarbawi Vol 7 No 01 (2021): May 2021
Publisher : Jurusan Manajemen Pendidikan Islam Fakultas Tarbiyah dan Keguruan UIN Sultan Maulana Hasanuddin Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32678/tarbawi.v7i01.4534

The value of recruiting and maintaining highly trained school leaders is rising in our country. This research aimed to determine factors that teacherâ€™s motivation being school principals. The survey responses of 104 public school principals in Serang City, including 77 elementary school principals and 27 junior high school principals, were evaluated using exploratory factor analysis. According to the results, factors such as Challenge, Altruism, Professional Advantage, and Leadership Influence encourage teachers to move into administration. In contrast, factors such as Inadequate Gain/Personal Benefit, Personal Needs or Issues, and Elevated Risk deter teachers from being school principals.

The In Silico Analysis and Identification of Possible Inhibitor of H5N1 Virus: Compounds Analysis and Identification of Possible Neuraminidase Inhibitors Syafrudin, Syafrudin; Septiadi, Luhur; Alfaruqi, Nuri Thobibatus Shofia; Wahyudi, Didik; Kharisma, Viol Dhea
Bioinformatics and Biomedical Research Journal Vol. 1 No. 2 (2018): Volume 1 Issue 2
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Fingerroot (Boesenbergia pandurata (Roxb.)) belongs to the family Zingiberaceae (Ginger). B. pandurata has pharmacological benefits such as neuroprotective, chemoprotective, anti-inflammatory, anti-angiogenic, antioxidant, an inhibitor of protease enzyme NS2B/NS3 dengue virus, Japanese encephalitis virus and swine flu virus (H1N1). This study aims to determine the most effective compounds from B. pandurata as neuraminidase inhibitors of H5N1 virus. The amino acid sequence for neuraminidase of avian influenza A virus subtype H5N1 of A/China/GD02/2006 was retrieved from protein sequence database at NCBI. Then, modeled by Swiss Model. Analyse of molecular docking was performed using PyRx and the interactions between neuraminidase inhibitors of H5N1 and B. pandurata active compound was analyzed by PyMol software and LigPlot+ software. From the 30 active compounds which have been docked, 4-hydroxypanduratin A, rubranine, boesenbergin B, boesenbergin A, 5,7-dimethoxyflavone, and tectochrysin had an equal or smaller free binding energy than control compound. 4-hydroxypanduratin A proved to be the most potent active compound as a neuraminidase inhibitor (NA 1) because it has the most negative binding energy and the same amino acid binding residue with the control compound. Therefore, 4-hydroxypanduratin A is predicted to be used as inhibitors of neuraminidase in the H5N1 virus.

Prediction of Novel Bioactive Compound from Zingiber officinale as Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs) of HIV-1 through Computational Study Kharisma, Viol Dhea; Septiadi, Luhur; Syafrudin, Syafrudin
Bioinformatics and Biomedical Research Journal Vol. 1 No. 2 (2018): Volume 1 Issue 2
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Human immunodeficiency virus 1 (HIV-1) is one of the viruses of that causes AIDS in humans and disease outbreaks in this modern era. Reverse transcriptase (RT) enzyme though to be the functional enzyme that play a role on the HIV-1 virus replication. Bioactive compounds contained on Ginger (Zingiber officinale) is known to inhibit viral replication. This study aims to determine the alternative bioactive compounds contained on Ginger (Zingiber officinale) as as a non-nucleoside reverse transcriptase (NNRTIs) HIV-1 inhibitors through computational study. The reverse transcriptase (RT) enzyme model was retrieved from protein sequence database (PDB) and validated with Ramachandran Plot and the compound contained on Ginger was retrieved from database. Analysis of molecular docking, performed using PyRx and the interactions between Reverse Transcriptase (RT) enzyme of HIV-1 virus and Zingiber officinale active compound was analyzed by PyMol and LigPlot+, also the drug-likeness molecule properties with The Lipinski Ruleâ€™s of Five. From 24 active compound which have been docked, ?-sitosterol proven to be the most potential bioactive compound as inhibitors of Reverse Transcriptase (RT) enzyme because it has more negative binding energy and the same amino acid residue with the control. Therefore, ?-sitosterol is predicted to be used as non-nucleoside reverse transcriptase (NNRTIs) HIV-1 inhibitors.

Co-Authors . Widayat A'yun, Husnul Karimah Qurrata A, Sadhu Adwitya A. Stevie Erga Abdullah, Nabil Izza Achmad Hufad Agung Wardana Agus Hartoko Alfaruqi, Nuri Thobibatus Shofia Alvin, Arya Alam Anastasya, Windy Divaci Andy Riski Pratama Anik Sarminingsih, Anik Arieyanti Dwi Astuti, Arieyanti Dwi Arifmiboy, Arifmiboy Astri Purnama Dewi Astuti, Farida Afriani Badrus Zaman Bagus Sujiwo Bambang Pujianto Bambang Riyanto Baskoro Lokahita Bella Nasila D Budi Prasetyo Samadikun Budianto, Tri Hendrawan Budiharjo, M. Arief Budiyono Budiyono Confera, Akbar Nugroho Darul Ilmi Denok Ambun Suri Dian Eni Sunarni Didik Wahyudi Dinah Husniah Fauzia Rahmiyati Yazid Fauziyah, Fita Firmansyah, Anton Fuadah, Tsani Tsamrotul Ganjar Samudro Ganjar Samudro H. Bunga Natalia Hadiyanto Hadiyanto Harusda, Dadhan Haryono S. Huboyo Haryono Setyo Huboyo Hayat, Nurul Henny Juliani, Henny Hernoni Septiani, Hernoni I Ketut Suada Iin Novitasari Ika Bagus Priyambada Imam Hanafi Indah Susilowati Indriyani Indriyani Inri Natalia Inri Natalia Iqbal Syaichurrozi Irawan Wisnu Wardhana Irwansyah Irwansyah Iswantir M Julian Marfal Karsam Karsam Khalish, Alif Akram Kharisma, Viol Dhea Kismartini Kismartini Larasati, Dyanung Latifa , Nurrahmi Latifa, Maysa Lucy Amena Sembiring M. Agung Wibowo M. Agung Wibowo Mahmud Mahmud Maman Fathurrohman, Maman Matin, Hashfi Hawali Abdul Mochamad Arief Budihardjo Mochtar Hadiwidodo Muhajirin, Muhajirin Muhiddinur Kamal Muktiono Waspodo Mulyati Mulyati NEVIATY PUTRI ZAMANI Nurandani Hardyanti Nurhasanah Nurhasanah Nurmaesyarah, Nurmaesyarah Nurul Awaliah Nurul Renaningtias, Nurul Paranita, Debbie Yuliana Purwanto Purwanto Putri, Soraya Annisa Rafiuddin, Rafiuddin Ramadan, Bimastyaji Surya Ratih Pujiastuti Rizki Tri Andrianingsih Rozita, Putri Rudy Kurniawan S. Suripin Sadhu Adwitya A Sani, Muhammad Thariq Sejati, Anang Wahyu Septiadi, Luhur Setiabudi Bambang Setyorini, Rita Agus Silviana Silviana Siswati, Muji SITI RACHMAWATI Sri Eko Wahyuni Sri Sumiyati Sriyana Sriyana Subhan, Ega Saiful Sudarno Sudarno Sudarwanto, Anang Suherman, Suherman Sulardjaka Sulardjaka Sumiati Sumiati Sutrisno, Sutrisno Suyadi, Andri Utami, Khurnia Tri Vitus Dwi Yunianto Budi Ismadi Wahyuni, Retno Hari Wati, Hessy Rahma Wati, Salmi Wedra Aprison Wicaksono, Vinsensius Priyo Winardi Dwi Nugraha Winardi Dwi Nugraha Yulius Yulius Yuliyanti yuliyanti Yusa Eko Saputro, Yusa Eko Zailani Zailani Zainal Abidin Arief ZAMAN, Badrus Zulhanudin, Al Farick Zulkifli Zulkifli

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